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 <h1 class="title">Filter 函数</h1>

 
















































<h2>Table of Contents</h2><ul class="chunklist chunklist_reference"><li><a href="function.filter-has-var.html">filter_has_var</a> — Checks if variable of specified type exists</li><li><a href="function.filter-id.html">filter_id</a> — Returns the filter ID belonging to a named filter</li><li><a href="function.filter-input-array.html">filter_input_array</a> — Gets external variables and optionally filters them</li><li><a href="function.filter-input.html">filter_input</a> — Gets a specific external variable by name and optionally filters it</li><li><a href="function.filter-list.html">filter_list</a> — Returns a list of all supported filters</li><li><a href="function.filter-var-array.html">filter_var_array</a> — Gets multiple variables and optionally filters them</li><li><a href="function.filter-var.html">filter_var</a> — Filters a variable with a specified filter</li></ul>
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